METHOD OF PREPARATION OF WIRE SURFACE BEFORE DRY DRAWING

FIELD: methods of preparation of surfaces of high-carbon and low-carbon wire before dry drawing; production of metalware. SUBSTANCE: wire is preliminarily subjected to etching in sulfuric acid solution at concentration of 150-220 g/l and temperature of 60 to 75 C or in hydrochloric acid solution at...

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Bibliographische Detailangaben
Hauptverfasser:	CHUMAEVSKIJ V.A, NABATOVA E.A, GUNINA T.V, BARYSHKOV S.V, KLEPIKOVA L.P, SKVORTSOVA L.B
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: methods of preparation of surfaces of high-carbon and low-carbon wire before dry drawing; production of metalware. SUBSTANCE: wire is preliminarily subjected to etching in sulfuric acid solution at concentration of 150-220 g/l and temperature of 60 to 75 C or in hydrochloric acid solution at concentration of 100-220 g/l at temperature of 18-35 C followed by washing. Subsequent application of under-lubricant coat is performed in solution at the following ratio of components, g/l: borax pentahydrate Na2B4O7.5H2O, 60.0-90.0; sodium meta-silicate Na2SiO3.9H2O, 2.0-3.0; trisodium phosphate Na3PO4, 5.0-7.0; fluorine compound, 10.0- 15.0; sodium sulfate Na2SO4, 10.0-15.0; sodium carbonate Na2CO3, 13.0-19.5 and water being the remainder; procedure is performed by dipping wire in working solution at temperature of 80 to 95 C for 2 to 10 minutes or by drawing wire through solution at temperature of 85 to 100 C for 10 to 40 seconds. EFFECT: improved antifriction properties of under-lubricant coat; enhanced stability of drawing tools.